Education

• M.S.E.E and B.S.E.E., University of Illinois, 1981.
  

Management experience

• Andrew Corp.  Principal Engineer, Systems;  Director, Satellite Network Engineering;  Director, Earth Station Product Line;  Director, RF Design
  Center.   1992-2004.
  
• Microsource, Inc.  Manager, Manufacturing and Test; Senior Design Engineer. 1989-1992.
  
• Amplica Inc.  Manager, CAD/CAM Engineering.  1986-1989.
  
• Comsat Laboratories.  Member of Technical Staff; Group Leader, Advanced Microwave Product Development. 1981-1986.
  

Technical experience

• Wrote simulators for nonlinear memoryless distortion simulators in VBA and Matlab, measuring effect of arbitrary distortion (e.g. NPR, MC-IMD) on
  arbitrary signal sets (e.g. multicarrier QPSK).
  
• Developed a new 12-parameter model to characterize TWTA distortion
  
• Created a new technique for determining AM-AM/AM-PM characteristics using pulse spectral measurements
  
• Crafted RF detailed architecture of Ka-band multicarrier burst gateway in coordination with customer's system engineering staff
  
• Analyzed traffic type efficiency for various VSAT access architectures, including mesh TDMA, TDM/TDMA and SCPC/DAMA.
  
• Created new Multipoint Frame Relay integrated satellite terminal and easily-deployed embedded-Linux SCPC terminal product families
  
• Rationalized a satellite antenna product family against market demand, production capabilities, and engineering resources.
  
• Modeled antenna surface accuracy repeatability and its relationship to performance parameters
  
• Coordinated the industry standard procedure for earth station type approvals (Global VSAT Forum)
  
• Trained manufacturing staff in Total Quality Management and developed a production and test scheme for low-volume microwave hardware
  oriented around Just-In-Time and TQM concepts
  

Standards groups

• Chair, Mutual Recognition Arrangement Working Group, Global VSAT Forum (1999-2004).
  
• Technical representative to WiMax Forum for Andrew Corp. (2003-2004).
  
• Co-wrote the satellite antenna standard appendix of ETSI TS 101 136.
  

Patents

• Method and System for Compensating for Atmospheric Fading in a Communications System, U.S. Patent 6,813,476.
  
• Self-Pointing Antenna Scanning, U.S. Patent 6,943,750.
  
• Precision Adjustment Antenna Mount And Alignment Method, US Patent 7,046,210
  

Publications

• R. L. Brooker, “Spectral-Null Pulse Waveform for Characterizing Gain and Phase Distortion in Devices with Uncorrelated Frequency Translation or
  Limited CW Power Capability,” 63rd ARFTG Conf. Dig., pp. 7-11, June 2004.  Paper (PDF)
  
• Ralph Brooker and Donald Jackson, "Techniques for Predicting Nonlinear Distortion in Ka-band Gateways," 10th Ka and Broadband
  Communications Conference, Vicenza, Italy, September 2004.  Paper (PDF)    Presentation (PDF)
  
• Ralph Brooker, "Satellite Industry Initiatives in Uplink Earth Station Quality, " RFI Forum, Washington, D.C., March 2003.  Presentation (PDF)
  
• R.L. Brooker, "Universal type approvals for Ka-band ground equipment," Space Communications 18 (2002) 13-16.  Presented at the 7th Ka Band
  Utilization Conference, Santa Margherita, Italy, September 2001. Paper (PDF)   Presentation (PDF)
  
• Ralph Brooker and Dan Vorderbrueggen, "Antenna Pointing Accuracy Impact on Geostationary Satellite Link Quality and Interference,"  23rd AIAA
  International Communications Satellite Systems and 11th Ka and Broadband Communications Joint Conference, Rome, Italy, 2005.  Paper (PDF).  
  
  

Ralph
Brooker